Maserati Granturismo vs Mercedes-Benz GLC300

What's the difference?

There’s a famous line in a Hollywood movie that somebody’s ego is writing cheques their body can’t cash.

In the GranTurismo’s case, its agility, performance, ride, handling and overall refinement means it absolutely delivers on the promise of the stunning styling.

Of course, this review is a first taster only, even if it is on one of the most challenging race circuits we know. And, as such, we cannot wait to finally drive the GranTurismo outside on Australian public roads.

Which, by the way, will be all the more beautiful because of it.

The GLC300 Coupe isn't quite as great when it comes to being a family car as the regular SUV version of the GLC, and that's purely down to the sloping roofline which not only makes access more difficult to the second row but reduces boot capacity.

That said, the GLC300 Coupe makes a much better family car than a Mercedes-Benz C-Class sedan, or any sedan.

Easy and enjoyable to drive, packed with great features and still practical, the GLC300 Coupe would still cut it as a good family car.

With a long bonnet and centralised, cab-backward silhouette, the new GranTurismo is built on a highly-modified version of the Stellantis Group’s Giorgio platform, which debuted with the BMW 3 Series-sized Alfa Romeo Giulia sedan back in 2016 and also underpins the Stelvio SUV. 

In this application, it has been redesigned as a modular architecture to accommodate, among other things, electrification. The resulting Folgore (Lightning) electric vehicle version will arrive in Australia during 2025.

Compared to before, the design is all-new, with a body that is slightly longer and wider than before; it features over 65 per cent aluminium, weight distribution is 52/48 per cent up front/rear, and the aerodynamics are honed to maximise efficiency, especially for the Folgore. The latter’s drag coefficiency of 0.26 – 0.02 better than the Modena/Trofeo.

Here are the key dimensions: 4959mm long (+78mm), 1957mm wide (+42mm), 1353mm tall (same as before) and 2929mm wheelbase (-20mm).

Maserati claims it invented the grand tourer with its post-war A6 1500 coupe of 1947. Since then, a variety of timeless designs have been released, with beauty always being the priority… and the GranTurismo nails it.

Coupe SUVs aren’t for everybody… they’re not even for lots of people. But the design of an SUV with its roof cut down so that it meets the tailgate at an almost sportscar-like angle appeals to more than a few fans. The thing is they don’t just like the look, they love it, and they also probably enjoy how much the styling makes other people cranky.

To my eyes the GLC300 Coupe is the best execution of the bodystyle compared to those of BMW and Audi. There’s an elegance to the GLC300 Coupe and the AMG-line adds a tough look that only enhances the solid, powerful but pretty look.

The GLC Coupe is a mid-sized SUV and this new generation model is a bit bigger the previous one and now measures 31mm longer at 4763mm end to end, it’s 1890mm wide, 1605mm tall and has a wheelbase of 2888mm.

It’s also more aerodynamic than ever. No seriously, it’s drag coefficient is now 0.27 and it looks like a bar of soap - and it's about as slippery as one, too.

More curved surfaces await inside with a dashboard that pours down into the large centre console and it's adorned with a sloping and large portrait-style media screen. 

At night or in tunnels the ambient lighting glows through the air vents and skirts the edges of the door trims, console and dashboard.

It’s a minimalist and high-tech cockpit with modern sports seats up front and a Nappa leather wrapped steering wheel with its twin blade design.  

So, how does the coupe design work for family practicality? Let’s take a look.

Long, low and wide. These are prerequisite proportions for a traditional grand touring 2+2 coupe, and with them come traditional packaging compromises.

With a near 3.0-metre wheelbase, there’s tonnes of room for legs, shoulders and even heads if you’re willing to sit nice and low, though the lush ambience is more cosy than coastal because of the accompanying broad centre console.

The dual central screens look like an open tablet, and it’s perfectly sized and easy to use. Same goes for much of the controls, while the driving position is, thankfully, first class. Just like the fit and finish.

Beating Mitsubishi’s TR Magna to the punch by decades, there’s an analogue clock perched above the centre vent outlets, which is digitalised and contains performance telemetry as per Porsche’s equivalent.

Vision is a little limited by the fat pillars and upswept window line but the big screens help. Storage is okay, and access to the rear is only for the very young, very fit or very limber.

Two more seats out back provide snug comfort, but the GranTurismo really is all about the ones up front. Overall, the cabin design’s restrained modernity matches the exterior’s styling philosophy down to a tee.

Further back, the boot lid opens electrically because why not, revealing 310 litres of cargo space. The rear seat doesn’t fold, but there is a ski-hatch into the cabin for broomsticks and some such.

Speaking of flying high, let’s take a look at the other side of the GranTurismo.

SUVs are the most practical cars for families because of the better access to the cabin thanks to their large doors and slightly elevated ride height, their big boots with wide and tall hatch openings and their high flat rooflines. They’re essentially raised station wagons.

A coupe-style SUV still has four doors but they are less boxy due to the sloping roofline which falls away quickly to meet the tailgate at a lower point. The effect is a sporty-looking shape but practicality is lost in this exercise of form over function.

The second row doorways aren’t as large as those on the regular SUV. I did a side-by-side test and felt like I had to duck under the sloping roof when getting out of the back seat.

The smaller opening also made it trickier to lift my toddler daughter into her baby seat.

The sidesteps are also surprisingly handy for bigger kids and my eight-year-old used them every time when climbing into the car.

Cabin storage is outstanding with huge door pockets and cupholders in both rows, and while the 545-litre boot in the GLC300 Coupe is 80 litres smaller than the cargo capacity of the regular GLC SUV, it's bigger than the previous version of the Coupe.

As for people space, there’s enough headroom for me at 189cm tall in the back seat and heaps of legroom, even behind my driving position.

I’ve mentioned the lack of climate control in the second row, but also should point out that there are no USB ports back there either.

There are USB ports in the big centre console box upfront and a long cord should be able to make it to the second row. 

There’s a wireless phone charger but it's housed in the bowels of the centre console too, and you’ll need to weave your hand while clasping the phone under the shiny black trapdoor, past the cupholders possibly with drinks in them and almost under the dashboard.

Mercedes-Benz is offering Australia just the GLC300 grade in both the SUV and Coupe body styles.

High-performance AMG variants are out overseas now and will arrive in Australia soon, too.

You can expect to pay more for these AMG beasts - a lot more than the $113,900 list price of the GLC300 Coupe.

Still the GLC300 Coupe does come standard with an AMG Line body kit and 20-inch AMG alloy wheels. LED headlights are also standard, so is the panoramic glass roof, tinted rear glass, proximity unlocking and a power tailgate.

Inside there’s synthetic leather Artico upholstery, sports heated front seats, Nappa leather steering wheel, an 11.9-inch media display with Apple CarPlay and Android Auto, a 12.3-inch digital instrument cluster and a head-up display. There’s also dual-zone climate control and wireless phone charging.

The value is good in terms of features, although the price is slightly higher compared to the rivals such as the BMW X4 xDrive30i ($106,400) and Audi Q5 Sportback 55TFSI ($110,200).

It’s worth pointing out, too, that the GLC300 Coupe is about $10K more than the GLC300 SUV version. Why? The coupe versions of prestige SUVs always tend to be pricier than their regular more boxy SUV siblings. Somebody in marketing will be able to explain why.

Having lived with the GLC300 Coupe with my family over the past few days I can say the proximity unlocking which works by touching even the back door handles is excellent, the tinted windows are dark and cut out much of the sun's glare, but there’s no climate control in the second row. There are air vents back there, which is good.

I found that on hot days the semi-transparent shade on the glass roof couldn’t stop the cabin from heating up quickly.

So, no more Ferrari-sourced V8, eh?

Yet, it’s not just a sexy body that Maserati has mastered, because this particular 2992cc 3.0L twin-turbo V6 is pretty-much exactly the same engine as you’ll find in the company’s MC20 supercar, give or take a bunch of outputs.

Called the Nettuno, it isn’t quite in the performance league of the GT’s mid-engined two-seater sibling, but with 365kW of power and 600Nm of torque in the Modena and 45kW/50Nm more in the Trofeo, it’s a spine-tingling symphony of speed and total jailbait… especially given the latter’s 320km/h maximum velocity.

That’s 18km/h quicker than the standard tune, and the Trofeo also shaves 0.4 seconds off the 0-100km/h sprint time at just 3.5s flat.

Either engine, though, feels terrifically quick and smooth and no doubt that’s aided by what must be one of the world’s greatest automatic transmissions in the eight-speed ZF unit. It sends drive to all four wheels.

Given the length, girth and opulence, a kerb weight of just 1795kg is outstanding, allowing a power-to-weight ratio of 203kW per tonne in the Modena and a knockout 228kW/tonne in the Trofeo.

To help keep all that in check, the GranTurismo also deploys double wishbones up front, a multi-link independent rear suspension set-up, along with the aforementioned air suspension – which is a nice nod to history as French carmaker Citroen used to own Maserati.

Anyway, the active suspension works in tandem with the four self-explanatory driving models fitted – 'Comfort', the default 'GT', 'Sport' and 'Corsa' (track).

The GLC300 Coupe has a 2.0-litre four-cylinder turbo-petrol engine making 190kW of power and 400Nm of torque.

There’s also an overboost function which allows the engine to make an extra 17kW and 200Nm just for a brief moment, but that extra dollop of grunt combined with the regular output provides impressive acceleration (0-100km/h in about 6.3 seconds) for overtaking or moving quickly when you need to.

A smooth nine-speed automatic transmission sends the drive to all-four wheels.

The GLC300 Coupe is all-wheel drive and while there’s a setting for rougher terrain, along with one for comfort, eco and sport, but I’d make sure that it doesn’t get any more adventurous than tame gravel and dirt roads.

Mercedes-Benz refers to the GLC300 Coupe as a mild hybrid and this is because it has a 48-volt system and an integrated starter-generator.

This type of hybrid doesn’t use electric motors, doesn’t drive the wheels and won’t save much fuel, but it will provide efficiencies by supporting the engine and when coasting, plus will reduce petrol consumption to a small degree.

You know, for a super coupe that can easily exceed 300km/h, the GranTurismo is pleasingly efficient, with a combined cycle average figure of 10.2L/100km.

Top that 70L tank with premium unleaded petrol, and you might even average over 680km between refills if you can restrain yourself from poking the bear under the bonnet.

How? Clean aero efficiency, along with that predominantly aluminium body that helps keep the weight down to under an impressive 1.8 tonnes.

Which all bodes really well for 2025’s Folgore EV version, which can also hit 100 in 2.7s on the way to 325km/h. Bring that on!

As we mentioned above the GLC300 Coupe's 48-volt mild hybrid system is not the kind of hybrid that will allow you to drive miles on electric power, nor will it dramatically reduce fuel consumption in the way a parallel, series or plug-in hybrid will. But every bit of efficiency helps.

Mercedes-Benz says the GLC300 Coupe will use 7.7L/100km after a combination of open and urban roads. 

We had the GLC300 Coupe for just two days, but in that time my family covered 176km of regular daily usage which took in motorways but mainly suburban duties such as the school run, supermarket dashes, that sort of thing.

In our fuel test we measured 14.48 litres at the fuel pump which works out to be an on-test fuel use figure of 8.2L/100km and not far off the manufacturer’s claim. 

While this fuel consumption isn’t overly high, a plug-in hybrid or even a parallel or series hybrid could return about 5.0L/100km or less.

Mercedes-Benz has dropped plug-in hybrids from its Australian range which is a shame because it would be good to see more efficient options in the GLC range. Of course if you want more efficiency from a Benz of the same size, there is always the fully electric EQB or EQC.

Though it has been modified by what may be an almost unrecognisable amount by Maserati’s engineers, using Stellantis’ Gorgio architecture that first appeared in the magnetic Alfa Romeo Giulia of 2016 and then utterly seduced in the flagship Quadrifoglio version is a great place to start.

Now, we’ve only tested the all-new GranTurismo (GT from here on in) coupe around the fast and challenging Tailem Bend race track near Adelaide, so cannot speak of its behaviour on Australian public roads.

But what we experienced was an incredible and elevating sports car experience. And, yes, that's despite the loss of the magnetic Ferrari-based 4.7-litre V8.

Even with ‘just’ 365kW of power and 600Nm of torque, the base Modena twin-turbo V6 thunders off the line, its superb ZF eight-speed automatic transmission, surely the best of its type in the world, shifting with lightning speed through the ratios as it blitzed past 100, then 150, then 200km/h in mere seconds. Maserati says within 8.8s, in fact.

To help keep all that in check, the GranTurismo deploys double wishbones up front, a multi-link independent rear suspension set-up, along with the aforementioned air suspension – which is a nice nod to history as French carmaker Citroen used to own Maserati.

Anyway, the active suspension works in tandem with the four self-explanatory driving models fitted – 'Comfort', the default 'GT', 'Sport' and 'Corsa' (track).

We were too thrilled to notice whether the loss of the Maserati V8 grumble, because the exhaust howl was exciting enough, along with the sheer ease in which the GT accelerates.

And when we needed to suddenly brake reaching corners that seemed stupidly close until we realised they weren’t, we also were relieved at the Modena’s marvellously effective Brembo brake package.

Now, at under 1900kg, the GT is still a heavy car, but not for a five-by-two metre-long-and-wide 2+2 seater coupe.

Seriously, the cohesion and crispness of the steering, whether in Comfort or three-settings down in shockingly heavier Corsa mode, tingles the senses, seeming far lighter and more agile than the (albeit lithe) luxury coupe styling suggests.

Not Porsche 911 supernatural-alacrity, but beautifully quick and reactive nonetheless. It’s such a buzz.

There’s also a sense of isolation from the air suspension underneath, aided by the trick adaptive dampers doing their bit too to cushion the ride. The vital luxury part of the GT equation is omnipresent in the Maserati coupe.

And this was all just in the Modena. Another few laps in the Trofeo just sharpened the senses and speed and responses, supercharging the experience around Tailem Bend.

What all this left us is a longing for more time behind the wheel. Which hopefully will happen soon, but for now, this is far-and-away the best Maserati I have ever driven. If you can afford one, this is all great news.

Of course, back in the real world on everyday roads, there will surely be criticisms, but for now, around the circuit, the GranTurismo is something very special indeed.

There’s a lot to like here but the short version is the GLC300 Coupe has a comfortable ride, but good handling, with a responsive engine, although rear visibility through the small back window is poor.

If we drill down a bit further I can tell you that excellent cameras around the car will help you check to make sure kids aren’t running around behind you and that forward and side visibility through the window is good.

An important takeaway is that the GLC300 Coupe is easy to drive with light steering and an engine that’s mild and controlled in its power delivery.

The gear shifter is mounted on the steering column, in the same way an indicator lever is. So putting the car into Drive, Reverse and Park is so easy and means you don’t have to take your hands off the steering wheel. 

As a family car I liked the good body control and composed ride. We have a small toddler that we can sometimes only get to sleep by taking her for a drive and we found that she could nod off and not be woken by potholes and speed bumps or too much leaning in the corners. 

The GLC was given the maximum five star ANCAP rating in 2022. There’s AEB, active lane keeping assistance and active blind spot warning and nine airbags including a centre airbag.

As mentioned above I especially liked the surround-view camera systems - which let you look right around the car - good for driveway safety and kids.

For child seats you’ll find two ISOFIX mounts and three top tether anchor points in the second row.

I was also impressed to see a space-saver spare wheel under the boot floor and not just a puncture repair kit. 

Maserati offers a frankly disappointing three-year/unlimited kilometre warranty, which is on the stingier side of things.

Service intervals are also every 12 months or 10,000km.

There is no capped-price servicing, but Maserati offers a pre-paid maintenance program that covers all the inspections and components and consumable replacements.

As the pricing was not finalised at the time of publishing, best to check the company’s website for the latest details.

The GLC300 is covered by Mercedes-Benz's five-year, unlimited-kilometre warranty. 

Services are annually or every 25,000km. And you can buy a three-year service plan for about $3000.